Apple iOS up to 12.1.4 Safari Reader Universal cross site scripting

CVSS Meta Temp Score
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CTI Interest Score
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4.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Apple iOS up to 12.1.4. The affected element is an unknown function of the component Safari Reader. This manipulation causes cross site scripting (Universal). The identification of this vulnerability is CVE-2019-6204. It is possible to initiate the attack remotely. There is no exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Apple iOS up to 12.1.4 (Smartphone Operating System) and classified as critical. Affected by this vulnerability is an unknown functionality of the component Safari Reader. The manipulation with an unknown input leads to a cross site scripting vulnerability (Universal). The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. The summary by CVE is:

A logic issue was addressed with improved validation. This issue is fixed in iOS 12.2, Safari 12.1. Enabling the Safari Reader feature on a maliciously crafted webpage may lead to universal cross site scripting.

The bug was discovered 03/25/2019. The weakness was shared 03/25/2019 by Ryan Pickren as HT209599 as confirmed advisory (Website). It is possible to read the advisory at support.apple.com. This vulnerability is known as CVE-2019-6204 since 01/11/2019. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK. The advisory points out:

A logic issue was addressed with improved validation.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 371711 (Apple Safari Multiple Vulnerabilities (HT209603)).

Upgrading to version 12.2 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The entries VDB-132233, VDB-132234, VDB-132235 and VDB-132236 are related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: Universal
Class: Cross site scripting / Universal
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: iOS 12.2

Timelineinfo

01/11/2019 🔍
03/25/2019 +73 days 🔍
03/25/2019 +0 days 🔍
03/25/2019 +0 days 🔍
03/26/2019 +1 days 🔍
05/20/2020 +421 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: HT209599
Researcher: Ryan Pickren
Status: Confirmed

CVE: CVE-2019-6204 (🔍)
GCVE (CVE): GCVE-0-2019-6204
GCVE (VulDB): GCVE-100-132259
scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍

Entryinfo

Created: 03/26/2019 14:42
Updated: 05/20/2020 11:48
Changes: 03/26/2019 14:42 (67), 05/20/2020 11:48 (3)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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